L4903 データシートの表示（PDF） - STMicroelectronics

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L4903

DUAL 5V REGULATOR WITH RESET AND DISABLE FUNCTIONS

STMicroelectronics 

L4903

DUAL 5V REGULATOR

WITH RESET AND DISABLE FUNCTIONS

. OUTPUT CURRENTS : I01 = 50mA

I02 = 100mA

. FIXED PRECISION OUTPUT VOLTAGE

5V ± 2 %

. RESET FUNCTION CONTROLLED BY INPUT

VOLTAGE AND OUTPUT 1 VOLTAGE

. RESET FUNCTION EXTERNALLY PRO-

GRAMMABLE TIMING

. RESET OUTPUT LEVEL RELATED TO OUT-

PUT 2

. OUTPUT 2 INTERNALLY SWITCHED WITH

ACTIVE DISCHARGING

. OUTPUT 2 DISABLE LOGICAL INPUT

. LOW LEAKAGE CURRENT, LESS THAN 1µA

AT OUTPUT 1

. INPUT OVERVOLTAGE PROTECTION UP TO

60V

. RESET OUTPUT NORMALLY LOW

. OUTPUT TRANSISTORS SOA PROTECTION

. SHORT CIRCUIT AND THERMAL OVER-

LOAD PROTECTION

PRELIMINARY DATA

Minidip

ORDERING NUMBERS : L4903

DESCRIPTION

The L4903 is a monolithic low drop dual 5 V regu-

lator designed mainly for supplying microprocessor

systems.

Reset, data save functions and remote switch

on/off control can be realized.

PIN CONNECTION

July1993

1/8

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